---
product_id: 476205733
title: "Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)"
brand: "sentinel"
price: "€ 85.95"
currency: EUR
in_stock: true
reviews_count: 5
category: "Sentinel"
url: https://www.desertcart.fi/products/476205733-sentinel-x100-inhibitor-1l-market-leading-heavy-duty-central-heating
store_origin: FI
region: Finland
---

# Maximizes heating efficiency & fuel savings pH neutral, safe for all indirect heating systems Industry-leading corrosion & limescale defense Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)

**Brand:** sentinel
**Price:** € 85.95
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your heating system flawless — because efficiency is the new luxury.

## Quick Answers

- **What is this?** Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000) by sentinel
- **How much does it cost?** € 85.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/476205733-sentinel-x100-inhibitor-1l-market-leading-heavy-duty-central-heating)

## Best For

- sentinel enthusiasts

## Why This Product

- Trusted sentinel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clear & Clean Solution:** Transparent formula ensures no residue build-up, maintaining system clarity and longevity.
- • **Heavy-Duty Performance:** Market-leading inhibitor that keeps your heating system running at peak performance.
- • **Fuel Efficiency Booster:** Extends system life while minimizing fuel consumption for smarter energy use.
- • **Universal Compatibility:** pH neutral formula designed for all types of indirect central heating systems.
- • **Ultimate System Protection:** Trusted by all major boiler manufacturers for unbeatable corrosion and limescale defense.

## Overview

Sentinel X100 Inhibitor is a 1L heavy-duty, pH neutral central heating system protector that prevents corrosion and limescale buildup. Recommended by all major boiler manufacturers, it extends system life and maximizes heating efficiency, reducing fuel usage. Its clear formula is suitable for all indirect heating systems, making it the industry standard for maintaining optimal performance.

## Description

Sentinel X100 Inhibitor provides protection for clean central heating systems against limescale and corrosion. Suitable for use in all types of indirect central heating system, Sentinel X100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage.

Review: Das Produkt hat einen guten Namen und wurde pünktlich geliefert. Daher meine Bewertung. Ich habe es aber nicht ausprobiert. Fragt einen Fachmann hierzu.
Review: Stärk

## Features

- The industry standard inhibitor, providing protection for clean central heating systems against limescale and corrosion; recommended by all major boiler manufacturers
- Heavy duty inhibitor which protects against limescale and corrosion
- Sentinel X100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage
- Ensures optimum system efficiency
- pH neutral formulation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FFYHBSK |
| ASIN  | B00FFYHBSK |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Clear |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,051) |
| Customer reviews | 4.6 4.6 out of 5 stars (2,051) |
| Date First Available | 25 May 2022 |
| Date First Available  | 25 May 2022 |
| Included components | Sentinel X100 Inhibitor 1L X100L-12X1L-GB |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 1.12 Kilograms |
| Item model number | X100L-12X1L-GB |
| Item model number  | X100L-12X1L-GB |
| Manufacturer | Sentinel |
| Manufacturer  | Sentinel |
| Material | Aluminum |
| Number Of Pieces | 1 |
| Part number | 389100 |
| Plug Profile | Wall |
| Power source type | Corded Electric |
| Product Dimensions | 13.5 x 7 x 19 cm; 1.12 kg |
| Product Dimensions  | 13.5 x 7 x 19 cm; 1.12 kg |
| Size | 1Ltr |
| Special Features | breites Anwendungsspektrum und doppelter Korrosions- und Kalkschutz |
| Style | Indoor Installation |

## Product Details

- **Brand:** Sentinel
- **Capacity:** 1 Liters
- **Power source:** Corded Electric
- **Product dimensions:** 9.7W x 21H centimeters
- **Special features:** breites Anwendungsspektrum und doppelter Korrosions- und Kalkschutz

## Images

![Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000) - Image 1](https://m.media-amazon.com/images/I/710HAu9DhiL.jpg)
![Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000) - Image 2](https://m.media-amazon.com/images/I/71TH1mbLm0L.jpg)
![Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000) - Image 3](https://m.media-amazon.com/images/I/61viNUNQFKL.jpg)
![Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000) - Image 4](https://m.media-amazon.com/images/I/61MFl8YWsCL.jpg)
![Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000) - Image 5](https://m.media-amazon.com/images/I/31T2iO6+NVL.jpg)

## Available Options

This product comes in different **Size, Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***A on 2 February 2026*

Das Produkt hat einen guten Namen und wurde pünktlich geliefert. Daher meine Bewertung. Ich habe es aber nicht ausprobiert. Fragt einen Fachmann hierzu.

### ⭐⭐⭐⭐⭐ Review
*by B***I on 11 December 2021*

Stärk

### ⭐⭐⭐⭐⭐ Review
*by B***E on 17 September 2025*

Conforme aux attentes

## Frequently Bought Together

- Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)
- Sentinel - X800 Fast Acting Cleaner 1L, targeted central heating system cleaning inside an hour, restores system efficiency by targeting corrosion debris, ideal for hot and cold systems
- QuickFill - SEL9260: Central Heating Dosing Tool - Add Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 to Your Central Heating System

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**Shop now:** [https://www.desertcart.fi/products/476205733-sentinel-x100-inhibitor-1l-market-leading-heavy-duty-central-heating](https://www.desertcart.fi/products/476205733-sentinel-x100-inhibitor-1l-market-leading-heavy-duty-central-heating)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-10*